21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979

General

Target

21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe
Size

155KB
MD5

5ca39da3b8dd7b5421e04b2c481218ba
SHA1

6b75242c45ac375b0df3d94d0a1f1ef705ef3203
SHA256

21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979
SHA512

2d7cbd1bde00b816fa5764eeb2d2a3c75aa1f1c238e3e9bace7913cf3d1bde5fda807410bdc6c7ad57b9ced4293e34d2cbaa605996aa054f00b78ac06329e4d2
SSDEEP

3072:oZpYg19EeiLLmjempGuCYooEK1JWaCItULG3rt2Wcora4dI9:OPjEl6jLiQ1JW+Oy3p/e

Score

7^/10

bootkit persistence spyware stealer

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
\??\c:\Program Files\hrpjlyy\ikqyzfc.dll	acprotect

Deletes itself 1 IoCs

Processes:

fsmfxhr.exe

pid process

2556 fsmfxhr.exe
Executes dropped EXE 2 IoCs

Processes:

fsmfxhr.exeikqyzfc.exe

pid process

2556 fsmfxhr.exe
2608 ikqyzfc.exe
Loads dropped DLL 7 IoCs

Processes:

cmd.exefsmfxhr.exeikqyzfc.exe

pid process

1672 cmd.exe
1672 cmd.exe
2556 fsmfxhr.exe
2608 ikqyzfc.exe
2608 ikqyzfc.exe
2608 ikqyzfc.exe
2608 ikqyzfc.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
2556	fsmfxhr.exe

pid	process
2556	fsmfxhr.exe
2608	ikqyzfc.exe

pid	process
1672	cmd.exe
1672	cmd.exe
2556	fsmfxhr.exe
2608	ikqyzfc.exe
2608	ikqyzfc.exe
2608	ikqyzfc.exe
2608	ikqyzfc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ikqyzfc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\Linycpy = "c:\\Program Files\\hrpjlyy\\ikqyzfc.exe \"c:\\Program Files\\hrpjlyy\\ikqyzfc.dll\",SetHandle"	ikqyzfc.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

ikqyzfc.exe

description	ioc	process
File opened (read-only)	\??\e:	ikqyzfc.exe
File opened (read-only)	\??\h:	ikqyzfc.exe
File opened (read-only)	\??\i:	ikqyzfc.exe
File opened (read-only)	\??\l:	ikqyzfc.exe
File opened (read-only)	\??\s:	ikqyzfc.exe
File opened (read-only)	\??\t:	ikqyzfc.exe
File opened (read-only)	\??\w:	ikqyzfc.exe
File opened (read-only)	\??\n:	ikqyzfc.exe
File opened (read-only)	\??\p:	ikqyzfc.exe
File opened (read-only)	\??\u:	ikqyzfc.exe
File opened (read-only)	\??\y:	ikqyzfc.exe
File opened (read-only)	\??\a:	ikqyzfc.exe
File opened (read-only)	\??\b:	ikqyzfc.exe
File opened (read-only)	\??\g:	ikqyzfc.exe
File opened (read-only)	\??\m:	ikqyzfc.exe
File opened (read-only)	\??\q:	ikqyzfc.exe
File opened (read-only)	\??\r:	ikqyzfc.exe
File opened (read-only)	\??\v:	ikqyzfc.exe
File opened (read-only)	\??\j:	ikqyzfc.exe
File opened (read-only)	\??\k:	ikqyzfc.exe
File opened (read-only)	\??\o:	ikqyzfc.exe
File opened (read-only)	\??\x:	ikqyzfc.exe
File opened (read-only)	\??\z:	ikqyzfc.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

ikqyzfc.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 ikqyzfc.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	ikqyzfc.exe

Drops file in Program Files directory 4 IoCs

Processes:

fsmfxhr.exe

description	ioc	process
File opened for modification	\??\c:\Program Files\hrpjlyy	fsmfxhr.exe
File created	\??\c:\Program Files\hrpjlyy\ikqyzfc.dll	fsmfxhr.exe
File created	\??\c:\Program Files\hrpjlyy\ikqyzfc.exe	fsmfxhr.exe
File opened for modification	\??\c:\Program Files\hrpjlyy\ikqyzfc.exe	fsmfxhr.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ikqyzfc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ikqyzfc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ikqyzfc.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2416 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ikqyzfc.exe

pid process

2608 ikqyzfc.exe
2608 ikqyzfc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ikqyzfc.exe

description pid process

Token: SeDebugPrivilege 2608 ikqyzfc.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exefsmfxhr.exe

pid process

1932 21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe
2556 fsmfxhr.exe

pid	process
2416	PING.EXE

pid	process
2608	ikqyzfc.exe
2608	ikqyzfc.exe

description	pid	process
Token: SeDebugPrivilege	2608	ikqyzfc.exe

pid	process
1932	21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe
2556	fsmfxhr.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.execmd.exefsmfxhr.exe

description	pid	process	target process
PID 1932 wrote to memory of 1672	1932	21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe	cmd.exe
PID 1932 wrote to memory of 1672	1932	21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe	cmd.exe
PID 1932 wrote to memory of 1672	1932	21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe	cmd.exe
PID 1932 wrote to memory of 1672	1932	21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe	cmd.exe
PID 1672 wrote to memory of 2416	1672	cmd.exe	PING.EXE
PID 1672 wrote to memory of 2416	1672	cmd.exe	PING.EXE
PID 1672 wrote to memory of 2416	1672	cmd.exe	PING.EXE
PID 1672 wrote to memory of 2416	1672	cmd.exe	PING.EXE
PID 1672 wrote to memory of 2556	1672	cmd.exe	fsmfxhr.exe
PID 1672 wrote to memory of 2556	1672	cmd.exe	fsmfxhr.exe
PID 1672 wrote to memory of 2556	1672	cmd.exe	fsmfxhr.exe
PID 1672 wrote to memory of 2556	1672	cmd.exe	fsmfxhr.exe
PID 2556 wrote to memory of 2608	2556	fsmfxhr.exe	ikqyzfc.exe
PID 2556 wrote to memory of 2608	2556	fsmfxhr.exe	ikqyzfc.exe
PID 2556 wrote to memory of 2608	2556	fsmfxhr.exe	ikqyzfc.exe
PID 2556 wrote to memory of 2608	2556	fsmfxhr.exe	ikqyzfc.exe

C:\Users\Admin\AppData\Local\Temp\21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe
"C:\Users\Admin\AppData\Local\Temp\21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\fsmfxhr.exe "C:\Users\Admin\AppData\Local\Temp\21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1672
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:2416
- - C:\Users\Admin\AppData\Local\Temp\fsmfxhr.exe
    C:\Users\Admin\AppData\Local\Temp\\fsmfxhr.exe "C:\Users\Admin\AppData\Local\Temp\21a5eb2b35e40da1e596c9e33c7f4ea8f2040b98abfe5d874667b2900867c979.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2556
  - - \??\c:\Program Files\hrpjlyy\ikqyzfc.exe
      "c:\Program Files\hrpjlyy\ikqyzfc.exe" "c:\Program Files\hrpjlyy\ikqyzfc.dll",SetHandle C:\Users\Admin\AppData\Local\Temp\fsmfxhr.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\Program Files\hrpjlyy\ikqyzfc.dll

Filesize
128KB

MD5
b428147111986bb0a124d52185a01b8b

SHA1
b01257261a14336cd3438c9cf8e1dfdea2aa9c03

SHA256
25810ebd67be5dd62a4ba8b99c0469906ec5db538d93eb200f5b8963c406a9c9

SHA512
f71ed6f8a6cab8ec978e1a1b0f5f5b9c0c874c086831c77515737abcb7646eb50fe30258ed965fe3d7d33f0dde72dc8cbeed2af3ede275fe00b6eef416410928

Download Submit
\Program Files\hrpjlyy\ikqyzfc.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\Users\Admin\AppData\Local\Temp\fsmfxhr.exe

Filesize
155KB

MD5
ed6635af132985a9bfb92e1f68c6d662

SHA1
c9f7ae2cc288780d1cf0ea9c0d7949a65f4f578c

SHA256
e85a2d991445ab6ce234926b8cafa38840ea6bd4704cf6ede77037f629553d7d

SHA512
92810b4381603db8e0ef17f69d368cd37ca72fad40c2a082e85783d1b324501d34a600afde113cfb8e66e1a81178b5c337091cddb98833c06dd75565246ce9f4

Download Submit
memory/1672-8-0x0000000000120000-0x0000000000150000-memory.dmp

Filesize
192KB

Download
memory/1672-7-0x0000000000120000-0x0000000000150000-memory.dmp

Filesize
192KB

Download
memory/1932-2-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/1932-0-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/2556-9-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/2556-17-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/2608-27-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2608-26-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2608-25-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2608-23-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2608-28-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2608-32-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2608-33-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads